Honorary Membership was limited to 10 from 1890-1900, and to 15 from 1901 onwards. Corresponding Membership was a lesser class of Honoris causa membership in the early years. A few honorary members, such as Barnard, were first made corresponding members for a short time before being recommissioned as honorary members.
Nation(s) |
Start | End | |
|---|---|---|---|
| Dollfus, Dr. Audouin C. | France | 1975 | 2011 |
| Loewy, M. Maurice | France | 1901 | 1907 |
| Henry, M. Paul | France | 1894 | 1905 |
| Baillaud, Dr. Édouard Benjamin | France | 1916 | 1934 |
| Flammarion, M. Camille | France | 1901 | 1925 |
| Vogel, Dr. Hermann C. | Germany | 1894 | 1907 |
| Baade, Dr. Wilhelm Heinrich Walter | Germany | 1954 | 1960 |
| Unsöld, Dr. Albrecht | Germany | 1956 | 1995 |
| Bok, Dr. Bart J. | Holland, USA, Australia | 1961 | 1982 |
| Monck, Prof. William Henry Stanley | Ireland | 1898 | 1915 |